Home / 380,818.29-525,529.25-211,063.35

Finding the Fourth Proportional to 380,818.29, 525,529.25 and 211,063.35

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Solution

The fourth proportional to 380,818.29, 525,529.25 and 211,063.35 is: 291,267.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,818.29 : 525,529.25 = 211,063.35 : x
  2. Step 2: Convert to fraction form
    380,818.29/525,529.25 = 211,063.35/x
  3. Step 3: Cross multiply
    380,818.29x = 525,529.25 × 211,063.35
  4. Step 4: Simplify right side
    380,818.29x = 110,919,964,027.99
  5. Step 5: Solve for x
    x = 110,919,964,027.99/380,818.29
  6. Step 6: Final answer
    x = 291,267.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.